2012 GMC Sierra Emission Control Parts
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Mahle®EGR Valve GasketGMC Sierra 2012, EGR Valve Gasket by Mahle®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...Made with precision and quality in mindDesigned to meet your specific needs$1.68 - $10.65 - Fel-Pro®EGR Valve O-RingGMC Sierra 2012, EGR Valve O-Ring by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet specific...Direct OEM replacement for a proper fitEnsures reliable sealing performance$1.50 - $7.52
- Walker®Ultra™ Direct Fit Catalytic Converter and Pipe AssemblyGMC Sierra 2012, Ultra™ Catalytic Converter and Pipe Assembly by Walker®. Converter Configuration: Direct Fit. Position: Front. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry leader,...$451.42 - $923.60
- AP Exhaust®Direct Fit Catalytic Converter and Pipe AssemblyGMC Sierra 2012, Catalytic Converter and Pipe Assembly by AP Exhaust®. Converter Configuration: Direct Fit. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a...$498.45 - $628.49
- MagnaFlow®OBDII Universal Fit Catalytic ConverterGMC Sierra 2012, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. OE Spec. If your car needs a new catalytic converter, install one that will get you through the...$641.00 - $1,710.00
- MagnaFlow®OEM Grade Universal Fit Catalytic ConverterGMC Sierra 1500 4.3L / 4.8L / 5.3L / 6.0L 2012, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. If your car needs a new catalytic converter, install one that...$194.00 - $231.00
- CATCO®Direct Fit Catalytic Converter and Pipe AssemblyGMC Sierra 2012, Catalytic Converter and Pipe Assembly by CATCO®. Converter Configuration: Direct Fit. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs...$542.95 - $912.76
- Davico®Direct Fit Catalytic ConverterGMC Sierra SLE 6.2L 2012, Catalytic Converter by Davico®. Converter Configuration: Direct Fit. Position: Front. With 4 O2 Sensor Ports. Catalytic Converter Overall Length: 43". This direct-fit catalytic converter by Davico will be a...$719.50
- MagnaFlow®OBDII Direct Fit Catalytic ConverterGMC Sierra 2012, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter will directly replace the factory unit,...$3,506.00 - $5,457.00
- Davico®Direct Fit Catalytic Converter and Pipe AssemblyGMC Sierra 2012, Catalytic Converter and Pipe Assembly by Davico®. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once...$227.68 - $690.68
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterGMC Sierra 2012, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust...$723.00 - $1,547.00
- AP Exhaust®Universal Fit Catalytic ConverterGMC Sierra 4.3L / 4.8L / 5.3L 2012, Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is...$339.09 - $747.89
- iD Select®ECO II Direct Fit Manifold Catalytic Converter and Pipe AssemblyGMC Sierra 2500 HD / 3500 HD Regular Cab / Extended Cab / Crew Cab 6.0L 2012, ECO II Manifold Catalytic Converter and Pipe Assembly by iD Select®. Converter Configuration: Direct Fit. Location: Undercar. With 2 O2 Sensor Ports....$720.18Save: 10%$648.16
- Mahle®Catalytic Converter GasketGMC Sierra 2012, Catalytic Converter Gasket by Mahle®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$4.28 - $7.50
- CATCO®OBDII Universal Fit Catalytic ConverterGMC Sierra 4.3L / 4.8L / 5.3L with California Emission / Federal Emission 2012, OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Without Air Tube. Designed and manufactured with innovative fabrication...$173.95 - $224.07
- Eastern Catalytic®ECO GM Direct Fit Catalytic ConverterGMC Sierra 6.2L with California Emission / Federal Emission 2012, ECO GM Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. Position: Front. With 4 O2 Sensor Ports. Catalytic Converter Overall Length: 43"....$868.83
- Eastern Catalytic®ECO II Direct Fit Manifold Catalytic ConverterGMC Sierra 2500 HD / 3500 HD Regular Cab / Extended Cab / Crew Cab 6.0L 2012, ECO II Manifold Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. Location: Undercar. With 2 O2 Sensor Ports. Catalytic...$625.72
- iD Select®Standard Universal Fit Large Oval Body Catalytic ConverterGMC Sierra 6.0L 2012, Standard Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 3". Catalytic...$225.30Save: 10%$202.78
- Eastern Catalytic®ECO GM Direct Fit Catalytic Converter and Pipe AssemblyGMC Sierra 1500 4.3L / 4.8L / 5.3L / 6.0L with Federal Emission 2012, ECO GM Catalytic Converter and Pipe Assembly by Eastern Catalytic®. Converter Configuration: Direct Fit. Location: Undercar. With 4 O2 Sensor Ports. Catalytic Outlet...$494.46
- Walker®Ultra™ Universal Fit Round Body Catalytic ConverterGMC Sierra 1500 4.3L / 4.8L / 5.3L / 6.0L with Federal Emission 2012, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. Without O2...$155.88
- AP Exhaust®608 Series Universal Fit Catalytic ConverterGMC Sierra 2012, 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Without Air Tube. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". Three-Way No / Air OBDII by designed US-EPA...$143.04 - $153.62
- CATCO®Select Plus Tech Series OBDII Universal Fit Round Body Catalytic ConverterGMC Sierra 4.3L / 4.8L / 5.3L with California Emission / Federal Emission 2012, Select Plus Tech Series OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round....$644.27
- Eastern Catalytic®Standard Universal Fit Large Oval Body Catalytic ConverterGMC Sierra 6.0L 2012, Standard Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 3"....$256.60
- JBA®Catalytic Converter GasketGMC Sierra 2012, Catalytic Converter Gasket by JBA®. JBA is proud to offer accessories to aid in the fitment of your JBA exhaust product. This product is made of high-quality materials to serve you for years to come. Designed using...JBA's premium header flange gaskets are made extra thick from a specially made formulated gasket materialTheir gaskets are rated up to 1100 F$9.45
- Big End Performance®PCV Breather CapPCV Breather Cap by Big End Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...$12.39 - $15.76
- Big End Performance®Clamp On PCV BreatherClamp On PCV Breather by Big End Performance®. This Big End Performance product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the highest level of quality....High quality at an affordable priceExpertly made from premium materials$16.27 - $18.98
- Granatelli Motor Sports®Valve Cover BreatherValve Cover Breather by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...Made with precision and quality in mindDesigned to meet your specific needs$15.96
- Granatelli Motor Sports®Valve Cover Breather InsertValve Cover Breather Insert by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...Made with precision and quality in mindDesigned to meet your specific needs$50.69 - $67.83
- Dorman®OE Solutions™ Oxygen Sensor Bung Repair KitOE Solutions™ Oxygen Sensor Bung Repair Kit by Dorman®. Why replace an exhaust pipe because of a corroded, stripped or damaged oxygen sensor bung? Save the pipe and replace the bung with this weld-on replacement. Standard O2 sensor...Repair-friendly solution - this oxygen sensor bung allows replacement of a damaged fitting without replacing the entire exhaust componentUniversal fitment - designed to accommodate standard oxygen sensor threads$9.61 - $11.46
- Walker®Ultra™ Universal Fit Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It meets the EPA policy and...$111.92 - $330.87
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2012 GMC Sierra Models
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